155 



Differs from the shell given by Kiener as young B. marginula- 

 turn by its more ventricose form, much coarser sculpture, less 

 elongated spire, and the presence of the posterior lamina on the 

 pillar. It may be compared with Bucc. Gruneri^ Dunker. 



Nassa paupera. T. parva, solida, ovato-lanceolata, albida 

 linea rufa unica cincta, longitrorsum 18-costulata, et liris con- 

 tinuis cincta : spira acuto-conica, anfr. 6-7 ventricosis, ultimo 

 brevi, subgloboso ; sutura profunda : apertura parva, subcircu- 

 laris, ^ long, testte adequans ; labro arcuato, intus 30-striato; 

 columella antice producta, callo granuloso baud appresso parce 

 induta. Long. | ; lat. ^ poll. Hah. Pacific Ocean. 



Much resembling Bucc. coccinella, but smaller, less ponderous, 

 more slender, the last whorl proportionally larger, the ribs less 

 numerous, but the revolving lines more so. 



Nassa mendica. Testa parva, rudis, solidula, elongata, rufo- 

 cinerea, longitrorsum undalo-plicata, spiraliter crebre lirata, epi- 

 dermide tenui lutoso induta: spira elongata, anfr. 6-7 ventrico- 

 sis, ultimo ellipsoideo, dimidiam long, testae superante : apertura 

 parva, alba, ovata ; labro simplici, vix crenulato, intus 10-lam- 

 inato ; columella producta, arcuata, vix callosa ; sinu siphonali 

 amplo. Long, f ; lat. f poll. Hah. Puget Sound, Nisqually, &c. 



A somewhat rude shell, very variable in its surface, being the 

 Pacific analogue of JV. trivittata, Say. It is more solid, more 

 undulated, less shouldered, its pillar lip more protracted, and its 

 aperture smaller. It is also closely allied to N. perpinguis, 

 Hinds, from the California coast, though differing essentially from 

 his description and figure. 



Nassa rubricata. Testa parva, elongata, ovata, granulata, 

 epidermide fulvo lineis interruptis rufis cincto induta, longitror- 

 sum 15-costato plicata, plicis ad anfr. ultimum obliquis, versus 

 labrum evanescentibus, et striis impressis decussatis ; stria sutu- 

 rali majori, seriem gemniularum efformante : spira acuto-conica, 

 anfr. 6 convexiusculis : apertura ^ long, testse baud equans, 

 rotundato-ovata, lactea ; labro intus crenulato ; sinu siphonali 

 mediocri. Long, f; lat. ^ poll. Hab. Pacific shore. 



I know not any species with which to compare this, except 

 perhaps, Bucc. corrugatum, from which it differs in its aperture. 

 Its elongated form, oblique folds on the outer whorl, and its white 



